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Service bulletin TT 94 23 01

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10233265
Published by NHTSA2023-04-06
Manufacturer's numberTT 94 23 01
Manufacturer's date2023-03-20
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Daytime Running Lamps (DLR) or Parking Light illumination only 1/2 operational with error C123B01

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
VOLKSWAGEN ID.42023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
26V6300002026-09-30. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
26V0300002026-01-21. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
26V0280002026-01-21. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
25V8360002025-12-03. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
24V3440002024-05-15. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; BACK OVER PREVENTION:SOFTWARE; ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
22V9560002022-12-29. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
22V8300002022-11-09. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION MOTOR

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
V9326032083367_12026-10-06. Service bulletin. Steps to take if DTC P0AA500 (DA:008C)
V9324012073298_42026-10-06. Service bulletin. range reduction / battery cell replacement
V9326052081829_22026-09-04. Service bulletin. Diagnosis of low insulation resistance in the High-Voltage (HV) wiring.
VOS-26-422026-08-05. Service bulletin. This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the issue: DA 0019 - Hotfix 12-V battery test(s) – No battery diagnosis - Inconclusive test result.
V9326052081829_12026-08-05. Service bulletin. Diagnosis of low insulation resistance in the High-Voltage (HV) wiring.
V9326022080102_32026-05-05. Service bulletin. Replace Battery Regulation Control Module Kit -J840- / -SX7- / -SX8-
V9324062074770_32026-05-05. Service bulletin. Important Step when replacing Battery Cell Modules
V9323022069932_42026-04-06. Service bulletin. Diagnostic DTC's with symptom codes stored in Battery Regulation Control Module -J840-
V9326022080670_12026-04-06. Service bulletin. Flushing H.V. Battery before opening
V9323082071535_62026-04-06. Service bulletin. Determine H.V. Battery Health & Remaining Capacity